scholarly journals Effect of seasonal influenza vaccination on influenza symptom severity among children in Hutterite communities: Follow‐up study of a randomized trial

2019 ◽  
Vol 14 (1) ◽  
pp. 28-36 ◽  
Author(s):  
Shannon E. Brent ◽  
Eleanor Pullenayegum ◽  
Margaret L. Russell ◽  
Mark Loeb
Keyword(s):  
Influenza Vaccination ◽  
Randomized Trial ◽  
Symptom Severity ◽  
Seasonal Influenza ◽  
Seasonal Influenza Vaccination ◽  
Follow Up Study

scholarly journals Antibody Responses to Influenza A/H1N1pdm09 Virus After Pandemic and Seasonal Influenza Vaccination in Healthcare Workers: A 5-Year Follow-up Study

2018 ◽  
Vol 68 (3) ◽  
pp. 382-392 ◽  
Author(s):  
Mai-Chi Trieu ◽  
Åsne Jul-Larsen ◽  
Marianne Sævik ◽  
Anders Madsen ◽  
Jane Kristin Nøstbakken ◽  
...  
Keyword(s):  
Influenza Vaccination ◽  
Healthcare Workers ◽  
Influenza A ◽  
Seasonal Influenza ◽  
Antibody Responses ◽  
Seasonal Influenza Vaccination ◽  
Follow Up Study

scholarly journals Effect of Influenza Vaccination of Children on Infection Rate in Hutterite Communities: Follow-Up Study of a Randomized Trial

PLoS ONE ◽  
2016 ◽  
Vol 11 (12) ◽  
pp. e0167281 ◽  
Author(s):  
Biao Wang ◽  
Margaret L. Russell ◽  
Lorraine Moss ◽  
Kevin Fonseca ◽  
David J. D. Earn ◽  
...  
Keyword(s):  
Influenza Vaccination ◽  
Randomized Trial ◽  
Infection Rate ◽  
Follow Up Study

scholarly journals Annual influenza vaccination of patients with cardiovascular diseases and changes in hemagglutinin antibody titers: 3-year follow-up data

2020 ◽  
Vol 25 (2) ◽  
pp. 88-101
Author(s):  
Elena V. Platonova ◽  
Alexandr D. Deev ◽  
Vladimir M. Gorbunov ◽  
Olga A. Nazarova ◽  
Olga A. Belova ◽  
...  
Keyword(s):  
Cardiovascular Diseases ◽  
Influenza Vaccination ◽  
Vaccination Coverage ◽  
Seasonal Influenza ◽  
Influenza Infection ◽  
Logarithmic Scale ◽  
Serological Response ◽  
Seasonal Influenza Vaccination ◽  
Antibody Titers

BACKGROUND: Seasonal influenza vaccination is recommended for patients with cardiovascular diseases. Low vaccination coverage among these patients is due to insufficient knowledge about vaccine efficiency and its regular annual use. This work aimed to study the repeated 6-month changes in hemagglutinin antibody titers (AT) for 3 years in patients with cardiac pathology in a comparative study of influenza preventive vaccination. MATERIALS AND METHODS: Analysis of ATs obtained based on the hemagglutination-inhibition test (HAI) was performed in 235 of 817 participants in a prospective follow-up. Blood sampling was performed at baseline, before the vaccination, and 6 months after, and at the same term in unvaccinated patients in the 20122013 and 20142015 seasons, respectively. The seropositive and seronegative responses to vaccination or acute respiratory or influenza infection were used, according to the reference values of seroconversion and seroprotection and the fact of seroconversion. Multiple regression analysis with a logarithmic scale was used to assess the vaccine effectiveness indices. RESULTS: With vaccination coverage of at least 40% against seasonal influenza within 3 years, the trends of a decrease in seropositive and an increase in seronegative responses in the vaccination group and its reverse nature in the comparison group were determined by traditional analysis. Using logarithmic calculation, an increase in HAI AT seroconversion was revealed over a 3-year follow-up period. It was characterized by a homogeneous serological response at annual vaccination and heterogeneous with a higher serological response in cases without vaccination (p = 0.002 for H1N1 and p = 0.005 for H3N2, respectively). This trend can be determined by a higher and more stable prevaccination level of HAI AT than the same residual level of AT among unvaccinated patients. CONCLUSION: During long-term cardiac studies, the logarithmic calculation in interpreting the results of HAI AT overcomes the limitations of the traditional analysis of assessing the efficiency of the annual influenza vaccine. Further serological programs are required to better understand the role of routine seasonal influenza vaccination in preventing morbidity and mortality of patients with cardiovascular diseases.

scholarly journals Impact of national influenza vaccination strategy in severe influenza outcomes among the high-risk Portuguese population

2019 ◽  
Vol 19 (1) ◽  
Author(s):  
Ausenda Machado ◽  
Irina Kislaya ◽  
Amparo Larrauri ◽  
Carlos Matias Dias ◽  
Baltazar Nunes
Keyword(s):  
High Risk ◽  
Influenza Vaccination ◽  
Seasonal Influenza ◽  
Vaccine Coverage ◽  
Vaccination Strategy ◽  
High Risk Population ◽  
Risk Population ◽  
Seasonal Influenza Vaccination ◽  
Severe Influenza ◽  
The Impact

Abstract Background All aged individuals with a chronic condition and those with 65 and more years are at increased risk of severe influenza post-infection complications. There is limited research on cases averted by the yearly vaccination programs in high-risk individuals. The objective was to estimate the impact of trivalent seasonal influenza vaccination on averted hospitalizations and death among the high-risk population in Portugal. Methods The impact of trivalent seasonal influenza vaccination was estimated using vaccine coverage, vaccine effectiveness and the number of influenza-related hospitalizations and deaths. The number of averted events (NAE), prevented fraction (PF) and number needed to vaccinate (NVN) were estimated for seasons 2014/15 to 2016/17. Results The vaccination strategy averted on average approximately 1833 hospitalizations and 383 deaths per season. Highest NAE was observed in the ≥65 years population (85% of hospitalizations and 95% deaths) and in the 2016/17 season (1957 hospitalizations and 439 deaths). On average, seasonal vaccination prevented 21% of hospitalizations in the population aged 65 and more, and 18.5% in the population with chronic conditions. The vaccination also prevented 29% and 19.5% of deaths in each group of the high-risk population. It would be needed to vaccinate 3360 high-risk individuals, to prevent one hospitalization and 60,471 high-risk individuals to prevent one death. Conclusion The yearly influenza vaccination campaigns had a sustained positive benefit for the high-risk population, reducing hospitalizations and deaths. These results can support public health plans toward increased vaccine coverage in high-risk groups.

scholarly journals Seasonal influenza vaccination coverage and its determinants among nursing homes personnel in western France

2017 ◽  
Vol 17 (1) ◽  
Author(s):  
Christelle Elias ◽  
Anna Fournier ◽  
Anca Vasiliu ◽  
Nicolas Beix ◽  
Rémi Demillac ◽  
...  
Keyword(s):  
Nursing Homes ◽  
Influenza Vaccination ◽  
Vaccination Coverage ◽  
Seasonal Influenza ◽  
Seasonal Influenza Vaccination

scholarly journals Support for Seasonal Influenza Vaccination Requirements among US Healthcare Personnel

2012 ◽  
Vol 33 (3) ◽  
pp. 213-221 ◽  
Author(s):  
Jürgen Maurer ◽  
Katharine M. Harris ◽  
Carla L. Black ◽  
Gary L. Euler
Keyword(s):  
Influenza Vaccination ◽  
Seasonal Influenza ◽  
Safety Issue ◽  
Healthcare Personnel ◽  
Sampling Frame ◽  
Staff Support ◽  
Term Care ◽  
Seasonal Influenza Vaccination ◽  
Care Facilities ◽  
Serious Disease

Objective.To measure support for seasonal influenza vaccination requirements among US healthcare personnel (HCP) and its associations with attitudes regarding influenza and influenza vaccination and self-reported coverage by existing vaccination requirements.Design.Between lune 1 and June 30, 2010, we surveyed a sample of US HCP (n = 1,664) recruited using an existing probability-based online research panel of participants representing the US general population as a sampling frame.Setting.General community.Participants.Eligible HCP who (1) reported having worked as medical doctors, health technologists, healthcare support staff, or other health practitioners or who (2) reported having worked in hospitals, ambulatory care facilities, long-term care facilities, or other health-related settings.Methods.We analyzed support for seasonal influenza vaccination requirements for HCP using proportion estimation and multivariable probit models.Results.A total of 57.4% (95% confidence interval, 53.3%–61.5%) of US HCP agreed that HCP should be required to be vaccinated for seasonal influenza. Support for mandatory vaccination was statistically significantly higher among HCP who were subject to employer-based influenza vaccination requirements, who considered influenza to be a serious disease, and who agreed that influenza vaccine was safe and effective.Conclusions.A majority of HCP support influenza vaccination requirements. Moreover, providing HCP with information about the safety of influenza vaccination and communicating that immunization of HCP is a patient safety issue may be important for generating staff support for influenza vaccination requirements.Infect Control Hosp Epidemiol 2012;33(3):213-221

Sign in / Sign up

Export Citation Format

Share Document